Sulky-plow



(No Model.) 2 SheetsSheet 1.

S. M. CAMPBELL.

SULKY PLOW.

No. 388,120. Patented Aug. 21, 1888.

II L\ W O (No Model.) 2 Sheets-Sheet 2.

S. M. CAMPBELL.

SULKY PLOW. No. 388,120. Patented Aug. 21, 1888.

mi /71,868 e8 NITE STATES SQUIRE M. CAMPBELL, OF URSA, ILLINOIS.

SULKY-PLOW.

SPECIFICATION forming part of Letters Patent No. 388,120, dated August 21, 1888.

Application filed June 11, 1888.

To all whom it may concern:

Be it known that I, Soninn M. CAMPBELL, of Ursa, in the county of Adams and State of Illinois, have invented certain new and useful Improvements in Sulky-Plows; and I do here by declare the following to be afull, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the figures and letters of reference marked thereon.

The present invention relates to certain improvements in sulky or wheel plows, and has for its object to so construct the plow as that the same depth of furrow may at all times be maintained and the plow raised and lowered with the minimum labor on the part of the operator.

To these ends the invention consists in employing the leverage power of the tongue in turning, to regulate the level of the plow, or to return it to normal position after being lowered; and it further consists in certain novel features of construction and combinations and arrangements of parts, to be hereinafter described, and pointed out particularly in the appended claims.

In the accompanying drawings, Figure l is a side elevation of a plow constructed in accordance with my invention. Fig. 2 is asimilar View with the lever controlling the landwheel removed and the plow partly lowered. Fig. 3 is a similar view with the plow lowered all the way. Fig. 4 is a similar view showing the position of the parts in the act of turnin Fig. 5 is a top plan view.

Similarletters of reference in the several figures indicate the same parts.

Great difficulty has heretofore been experienced in maintaining the level of the plow throughout the entirelength of the furrow, and particularly at the ends, where the front wheel, which runs in the furrow previously made, strikes the unplowed land, the plow being frequently raised far enough to throw it clear out of the ground. In order to overcome this difficulty, the plow is lowered at the moment the frame is lifted by the front wheel and left in that position until the said wheel assumes normal position or at the end until the turn is made, when it has to be again lowered, in order to continue the same depth of furrow. To

accomplish thesemovements, I p referably mak c use of the mechanism illustrated in the drawin gs, wherein it will be seen that A represents the plow-frame of any approved style, B the front wheel, and G the land-wheel.

The plow proper or share, E, is pivoted to the frame either at the bottom of the standard F, as shown, or at any other convenicntpoint, and the land-wheel I) is carried by the usual crank-axle, G, controlled by hand-lever H, having the pawl 71 thereon for engaging teeth on the segment 77 on the frame and holding the wheel in adjusted position.

The wheel B, locatedinznlvance of the plow, is mounted for convenience on a crank-axle, I, taking a vertical bearing at l. in the front end of the frame, and preferably to this axle is se cured the tongue K, so as to turn therewith and control the direction of movement of the plow. The tongue also controls the swinging movement of the plate L, which is adjustably secured to its base by bolts M or to the axle I in any desired manner, a series of apertures, M being formed therein to one side of its pivotal point for a purpose to be presently explained.

The plow or share E, as before stated, is pivoted to the standard F, its movements being controlled by the lever N, which takes its bcaring on the axle and is connected to the upright standard N, rigidly secured to the plow by the link N", a suitable pawhn, being mounted on the lever for engaging the teeth of the segmental plate n on the frame corresponding with plate h to lock the lever and plow in adjusted position when desired.

' Running back from the lever N is a connecting rod or link, 0, the rear end of which is pivotally united to the axle G of the trailer 0 the said axle taking its vertical bearing in a block, 0*, having a horizontal bearing in the framc,thus permitting an up and-down as well as a vibratory movement on said wheel, the

former movement, by reason of crank shape of the axle, causing a vertical movement of the frame with relation to the bearing-point of the wheel. The lever N is further provided with two stops or pins, 0 O, and a guide, 0, on one side, with which a connecting rod or link, P, secured to the plate L, engages as follows:

The said connecting-rod has a pin or stud, p,

at the lower end, which enters one or theother of the series of notches M in the plate L, while at its upper end it has the short lever 19 pivoted thereto, the handle of the rod and lever being preferably of different lengths to facilitate the grasping of the former to lower the plow a short distance only. On the under side both the rod and lever are provided with notches p ,which engage the forward stop or pin, 0, and the lever 12 is further provided with a shoulder, 19, to one side of the notch, as shown.

The connection between the rear wheel or trailer, 0*, and the rod 0 is made by slotting the end of the rod and forming a shoulder, g, on the under side thereof, the end of the axle being formed with a flat surface resting against said shoulder and with a projection passing through the slot, thus forming a coupling which tends to keep the trailer at all times in line. This form of coupling is preferred on account of its simplicity; but it is obvious that any of the well-known forms of devices for accomplishing thedesired result may be employed in its stead.

The operation will now be readily understood, and is as follows: Assuming that the plow is running a straight furrow, the parts occupy thepositions shownin Fig. 1-thelandwheel locked for that particular depth of furrow and the pawl of the lever N held out of engagement with the teeth onthe plate a by a suitable catch. When any slight rise in the ground occurs, which will temporarily raise the forward wheel, the end of the connectingrod P is grasped and raised a short distance, or until the top of the guide 0 is encountered, (see Fig. 2,) the lever 10 being meanwhile left in engagement with the stop 0, the result being that the lever N is allowed to fall forward ashort distance and the trailer to swing up and the plow-point down, thus slightlylowering the plow simultaneously at the point and heel. The slight rise being passed, the rod is pushed down and the plow brought up to original position, the toggle formed by the rod and short lever rendering this movement comparatively easy. When the end of the furrow is reached, and immediately before the front wheel mounts upon the unplowed land, the rod P and leverp are both lifted and the lever N permitted to swing forward until arrested by the stop Q, which is adjusted to the depth of the furrow by means of the pin g, which enters between the teeth in the platen and the plow lowered a corresponding distance, as shown clearly in Fig. 3. The plow proper or share having reached the end of the furrow, the team is turned and the rod P, connected to its rear end, drawn forward, resting on the stop or pin 0, the notch in its under side being thereby held out of engagement with the forward stop or pin, 0, to prevent the dragging forward of the lever N and the consequent breakage of the said stop. Now, when the plow has been turned and the team is be ing again brought into line, the rod P will be pushed back, and the shoulder p? on the lever, coming in contact with the stop 0, will force the lever N back and bring the plow up to normal position without being touched by the operator, the plow being then ready to run another straight furrow.

The plate L is adjustably connected to the pivoted base-section of the tongue for the purpose of adapting the devices for application to plows in which the lever is moved in the 0pposite direction from that shown in the drawings, as well as to cause the plow to be lowered uponturning the tongue at different angles, as may sometimes be found necessary.

The plow-controlling lever may be locked rigidly in position while running long straight furrows and it is desired to throw the strain off of the base of the tongue and plate L, although I prefer to depend on the notches to hold it at all times, this also automatically lowering they plow when turning a short curve in plowing from the center out when the forward wheel mounts on the plowed land in turning the slightly-rounded corners, the distance the plow is lowered being gaged by the aperture in the plate L, in which the end of the rod P is in serted.

While I have thus particularly described my invention, I do not desire to be limited to the exact mechanism shown and described, as it is obvious that it may be greatly varied with out departing from the spirit of my invention.

a For instance, the side leverage of the tongue may be employed for manipulating the landwheel or any of the wheels independently of the others, or the plow independently of the wheels, as would be the case were the connection to the rear wheel severed and the said wheel secured in rigid upright bearings, or the plow and its beam rigidly connected together and the beam pivotally connected to the frame, as in many of the plows now in common use.

Having thus described my inveution,what I claim as new is 1. In a wheel-plow, the combination, with the frame and the tongue pivoted to swing horizontally, of a connection between said tongue and-the lever for regulating the depth of the plow,whereby said lever will be moved by the horizontal movement of the tongue, substantially as described.

2. In a wheel-plow, the combination, with the frame and the tongue pivoted to swing horizontally, of a connection between said tongue and the lever for regulating the depth of the plow, whereby the lever will be moved the tongue and lever, whereby the plow will be moved by the horizontal movement of the tongue, substantially as described.

4. In a wheel-plow, the combination, with the frame, the plow pivoted thereto, the lever controlling its movements, and the rear wheel mounted in hearings to swing vertically, of the tongue pivoted to the frame to swing horizontally, and connections between the tongue and lever and lever and rear wheel, whereby the depth of the plow will be regulated by the horizontal movement of the tongue, substair tiall y as described.

5. In a wheel-plow, the combination, with the frame, the plow pivoted thereto, and the lever controlling its vertical movements, of the tongue pivoted to the framcto swing horizontally, a connection between the tongue and lever,whcreby the plow will be moved to nor mal position by the horizontal movement of the tongue, and a trip lor releasing said lever to permit of the independent movement of the plow, substantially as described.

6. In a wheel-plow, the combination, with the frame, the plow pivoted thereto, the lever controlling its movements,and the rear wheel mounted in hearings to swing vertically, of the tongue pivoted to the frame to swing horizontally, connections between the tongue and lever and lever and rear wheel, whereby the depth of theplow will be regulated by thehorizontal movement of the tongue, and a trip for releasing the connection between the tongue and lever for permitting the independent adjustment of the plow, substantially as described.

7. In a wheel-plow, the combination, with the frame and plow and the lever for regulating the depth of the plow, pivoted to the frame, of the tongue pivoted to the frame to swing horizontally, a connecting rod or link pivoted to the tongue, a catch thereon for antomatically engaging the lever to carry it to normal position when the tongue is moved horizontally and permit its release for independent adjustment, and an adjustable stop for limiting the movement of the lever when so released, substantially as described.

8. In a wheel-plow, the combination, with the frame, the plow, the lever for regulating the depth of the same,and the tongue pivoted to the frame to move horizontally, of a connecting rod or link pivoted to the tongue and engaging the lever, and a lever pivoted to said connectingrod, also engaging said first-melt tioned lever and forming a toggle to return the plow to normal position when the connecting-rod is disengaged to permit aslight downward movement of the plow, substantially as described.

9. In a wheclplow, the combination, with the frame, the plow, the lever for regulating the depth of the same, and the tongue pivoted to the frame to move horizontally, of a connecting rod or link uniting the tongue and lever, and an adjustable connection between the conneeting-rod and tongue for regulating the extent of movement of the same, substantially as described.

10. In a wheel-plow, the combination, with the frame, the plow, the lever for regulating the depth of the same, and the tongue pivoted to the frame to move horizontally, of the adjustable plate moved by the tongue and the connecting-rod or pitman connecting said plate and lever,as and for the purpose set forth.

11. In a wheel-plow, the combination, with the frame, the plow, the lever for regulating the depth of the same, and the tongue pivoted to the frame to movehorizontally, of the connecting-rod or pitman connecting said plate and lever, and an adjustable connection between said rod and plate, substantially as described.

12. In a wheel-plow, the combination, with the frame, the plow, the lever for regulating the depth of the same,having the two stops or pins thereon, and the tongue pivoted to the frame to move horizontally, of a connectingrod pivoted to the tongue and engaging the forward stop or pin on the lever to adjust the lever, and resting on the rear pin when thelever is thrown forward to prevent its engagement in a direction to cause the further forward movement of the lever, substantially as described.

13. In a wheel-plow, the combination, with the frame, the plow and beam relatively stationary, the plow-beam pivotally connected to said frame to swing vertically, and a lever controlling its vertical movements, of the tongue pivoted to swing horizontally, and a connection between the tongue and lever, whereby the plow will be moved by the horizontal movement of the tongue, substantially as described.

SQUIRE M. CAMPBELL.

\Vitnesses:

STEPHEN D. CAMPBELL, W. MoonE.

So adjustable plate moved by the tongue, the 

